Meet Robby: a hackable robot platform with plug & play sensors and modules that gets young engineers familiar with the basics of robotics and coding. Robby has a powerful microprocessor, Arduino library with examples, step-by-step instructions, omnidirectional wheels, and WiFi/Bluetooth.
Robby has a Teensy microprocessor. It has 6 sensor ports. You can program it with Blockly or C++.